CN-224215132-U - Hydrogen and nitrogen gas mixed storage structure

Abstract

The utility model provides a hydrogen and nitrogen mixed storage structure, which comprises an equipment support frame, wherein a hydrogen storage device is arranged on the equipment support frame, a nitrogen storage device is arranged on the equipment support frame at one side of the hydrogen storage device, gas filling pipelines are arranged at the lower ends of the hydrogen storage device and the nitrogen storage device, a gas mixing pipeline is arranged at the upper end of the nitrogen storage device and is connected with the mixed gas storage device through a pipeline, and the mixed gas storage device is arranged at one side of the equipment support frame.

Inventors

• SHI HAIQING
• ZHOU GUI
• WANG XIAOXIN
• LIU XIA

Assignees

• 上海沪辰气体有限公司

Dates

Publication Date

20260508

Application Date

20250619

Claims (7)

1. 1. The utility model provides a hydrogen and nitrogen gas mixed storage structure, includes equipment support frame (1), be equipped with hydrogen storage device (2) on equipment support frame (1), be equipped with nitrogen gas storage device (3) on equipment support frame (1) of hydrogen storage device (2) one side, characterized in that hydrogen storage device (2), nitrogen gas storage device (3) lower extreme is equipped with gas filling pipeline (4), nitrogen gas storage device (3) upper end is equipped with gas mixing pipeline (6), gas mixing pipeline (6) are connected in mixed gas storage device (7) through the pipeline, mixed gas storage device (7) are installed in one side of equipment support frame (1), gas mixing pipeline (6) include emergent circulation pipeline (61), emergent circulation pipeline (61) one end is equipped with hydrogen input end (64), the other end is equipped with nitrogen gas input end (63), hydrogen input end (64) are equipped with mixed gas output tube (65) through three-way pipe (62) and the opposite side is equipped with emergent exhaust pump (68) on emergent circulation pipeline (61), a nitrogen mixing control pump (66) is arranged on an emergency circulating pipeline (61) between the nitrogen input end (63) and the mixed gas output pipe (65), and a hydrogen mixing control pump (67) is arranged on the emergency circulating pipeline (61) between the hydrogen input end (64) and the mixed gas output pipe (65).
2. 2. The hydrogen and nitrogen mixed storage structure according to claim 1, wherein fixing bolt mounting holes are formed in the lower ends of the hydrogen storage device (2) and the nitrogen storage device (3), and the lower ends of the hydrogen storage device (2) and the nitrogen storage device (3) are mounted on the equipment support frame (1) through fixing bolts.
3. 3. The hydrogen and nitrogen mixed storage structure according to claim 1, wherein the hydrogen storage device (2) comprises a storage tank body (31), the lower end of the storage tank body (31) is arranged on a tank body supporting seat (32), the lower end of the storage tank body (31) is provided with a gas inducing input end, and the storage tank body (31) is provided with a gas discharging end (33).
4. 4. The hydrogen and nitrogen mixed storage structure according to claim 1, wherein the nitrogen storage device (3) stores a tank body (31), the lower end of the tank body (31) is arranged on a tank body supporting seat (32), the lower end of the tank body (31) is provided with a gas inducing input end, and the tank body (31) is provided with a gas discharging end (33).
5. 5. A hydrogen and nitrogen mixed storage structure according to claim 3, wherein a plurality of monitoring equipment mounting seats (35) are arranged on one side of the storage tank body (31), and a plurality of mounting lifting lugs (34) are arranged on the outer side of the storage tank body (31).
6. 6. A hydrogen and nitrogen mixed storage structure according to claim 1, wherein a gas filtering system (5) is arranged on the gas filling pipeline (4), the gas filtering system (5) comprises a filtering pipeline (51), and a primary filtering tank (52), a secondary filtering tank (53) and a filtering driving pump (54) are arranged on the filtering pipeline (51).
7. 7. A hydrogen and nitrogen mixed storage structure according to claim 1, wherein the mixed gas storage device (7) comprises a mixed gas storage tank body (71), the lower end of the mixed gas storage tank body (71) is arranged on a tank body supporting and fixing frame (72), a mixed gas transmission pipeline (73) is arranged on one side of the mixed gas storage tank body (71), and a mixed gas control valve (74) is arranged on the mixed gas transmission pipeline (73).

Description

Hydrogen and nitrogen gas mixed storage structure Technical Field The utility model relates to the technical field of gas production and utilization, in particular to a hydrogen and nitrogen mixed storage structure. Background Hydrogen and nitrogen are common industrial gases. The hydrogen has stable property at normal temperature, but the property of the hydrogen becomes active after the condition is changed, so that the activity is further enhanced, and the explosion is easy to happen when the hydrogen encounters a fire source. Nitrogen can generate different inorganic and organic matters under specific conditions, and is widely applied to the fields of chemical industry, agriculture and the like, and the common application of nitrogen is to manufacture ammonia and nitric acid. The main raw materials of ammonia are hydrogen and nitrogen, and in order to ensure the safety of industrial production, the hydrogen and the nitrogen are stored in different tanks in the existing ammonia synthesis process, different storage environments are designed according to the properties of the gases, and the hydrogen and the nitrogen are further mixed before ammonia synthesis. The method improves the hydrogen energy storage and transportation efficiency and reduces the hydrogen energy storage and transportation cost, and is a development focus of the hydrogen energy storage and transportation technology. Currently, three types of hydrogen storage modes are available, namely high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage tanks and solid hydrogen storage based on hydrogen storage materials. For gaseous hydrogen storage, the method is generally carried out according to the requirements of GB4962-1985 hydrogen use safety technical regulations, but the hydrogen storage mode has the problems of poor safety, large occupied area and the like. If the improper hydrogen storage mode is easy to cause hydrogen leakage, combustion or explosion, serious injury and damage can be caused to personnel, environment and equipment, and the material of the storage tank is extremely high in requirement, so that the cost of hydrogen energy utilization is further increased. The Chinese patent discloses a hydrogen and nitrogen mixed storage system, an operation method and application thereof (application number: 202311662428.8), wherein the storage system comprises a hydrogen preparation device, a hydrogen control device, a hydrogen compression device, a nitrogen preparation device, a nitrogen control device, a nitrogen compression device, a mixed storage tank and a discharge pipeline. The hydrogen preparation device can effectively provide hydrogen, the dosage proportion of raw material gas can be controlled through the hydrogen control device and the nitrogen control device, and the mixed gas can be directly used for subsequent ammonia synthesis. But its storage structure is unreasonable, resulting in the existence of safety hazards. Disclosure of utility model The technical problem to be solved by the utility model is to provide a hydrogen and nitrogen mixed storage structure so as to solve the problems in the background art. The technical problem to be solved by the utility model is realized by adopting the following technical scheme that the hydrogen and nitrogen mixed storage structure comprises an equipment supporting frame, wherein a hydrogen storage device is arranged on the equipment supporting frame, a nitrogen storage device is arranged on the equipment supporting frame on one side of the hydrogen storage device, a gas filling pipe is arranged at the lower ends of the hydrogen storage device and the nitrogen storage device, a gas mixing pipe is arranged at the upper end of the nitrogen storage device, the gas mixing pipe is connected with the mixed gas storage device through a pipe, the mixed gas storage device is arranged on one side of the equipment supporting frame, the gas mixing pipe comprises an emergency circulating pipe, a hydrogen input end is arranged at one end of the emergency circulating pipe, a nitrogen input end is arranged at the other end of the emergency circulating pipe, the hydrogen input end and the nitrogen input end are arranged on the emergency circulating pipe through a tee pipe, a mixed gas output pipe is arranged on one side of the emergency circulating pipe, an emergency exhaust pump is arranged on the other side of the emergency circulating pipe between the nitrogen input end and the mixed gas output pipe, and the emergency circulating pipe between the hydrogen input end and the mixed gas output pipe is provided with a hydrogen mixed control pump. Further, fixing bolt mounting holes are formed in the lower ends of the hydrogen storage device and the nitrogen storage device, and the lower ends of the hydrogen storage device and the nitrogen storage device are mounted on the equipment supporting frame through fixing bolts. Further, the hydrogen storage device comprises a storage